<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <script type="text/javascript" src="../assets/js/vue.js"></script>
    <title>Extends Optin Demo</title>
</head>
<body>
<h1>Extends Optin Demo</h1>
<hr>
<div id="app">
    {{message}}
    <p>
        <button @click="add">add</button>
    </p>
</div>

<script type="text/javascript">
    var bbb = {
        created: function () {
            console.log("我是被扩展出来的");
        },
        methods: {
            add: function () {
                console.log('我是被扩展出来的方法！');
            }
        }
    };
    var app = new Vue({
        el: '#app',
        data: {
            message: 'hello Vue!'
        },
        methods: {
            add: function () {
                console.log('我是原生方法');
            }
        },
        extends: bbb
    })
</script>
</body>
</html>